🔄Update: 主题订阅

src/main/java/cn/hezhaohui/mq/EmitLogTopic.java

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+package cn.hezhaohui.mq;
+
+import com.rabbitmq.client.Channel;
+import com.rabbitmq.client.Connection;
+import com.rabbitmq.client.ConnectionFactory;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.Scanner;
+import java.util.concurrent.TimeoutException;
+
+public class EmitLogTopic {
+
+    private static final String EXCHANGE_NAME = "topic_logs";
+
+    public static void main(String[] args) {
+        ConnectionFactory factory = new ConnectionFactory();
+
+        try (Connection connection = factory.newConnection();
+             Channel channel = connection.createChannel();
+             Scanner scanner = new Scanner(System.in)) {
+
+            // Init exchange
+            channel.exchangeDeclare(EXCHANGE_NAME, "topic");
+
+            // Send message
+            while (true) {
+                System.out.println("[#] Facility ?");
+                String input_facility = scanner.nextLine();
+                System.out.println("[#] Severity ?");
+                String input_severity = scanner.nextLine();
+                if (input_facility.equals("exit") || input_severity.equals("exit")) {
+                    break;
+                }
+
+                System.out.println("[#] Message ?");
+                String input_message = scanner.nextLine();
+                channel.basicPublish(EXCHANGE_NAME, input_facility + '.' + input_severity, null, input_message.getBytes(StandardCharsets.UTF_8));
+                System.out.println("🔶🔶🔶");
+            }
+
+            // Init queue
+        } catch (IOException | TimeoutException e) {
+            System.err.println("=== #Error ===");
+        }
+    }
+}

src/main/java/cn/hezhaohui/mq/ReceiveLogsTopic.java

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+package cn.hezhaohui.mq;
+
+import com.rabbitmq.client.Channel;
+import com.rabbitmq.client.Connection;
+import com.rabbitmq.client.ConnectionFactory;
+import com.rabbitmq.client.DeliverCallback;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.concurrent.TimeoutException;
+
+public class ReceiveLogsTopic {
+
+    private static final String EXCHANGE_NAME = "topic_logs";
+
+    public static void main(String[] args) throws Exception {
+        ConnectionFactory factory = new ConnectionFactory();
+
+        Connection connection = factory.newConnection();
+        Channel channel = connection.createChannel();
+
+        channel.exchangeDeclare(EXCHANGE_NAME, "topic");
+
+        // Queue
+        String queue_name = channel.queueDeclare().getQueue();
+
+        if (args.length < 1) {
+            System.err.println("[Null args]");
+        }
+
+        for (String bindingKey : args) {
+            channel.queueBind(queue_name, EXCHANGE_NAME, bindingKey);
+        }
+
+        System.out.println("🎉 Go Go Go");
+
+        DeliverCallback callback = (consumerTag, delivery) -> {
+            String output_message = new String(delivery.getBody(), StandardCharsets.UTF_8);
+            String output_facility_severity = delivery.getEnvelope().getRoutingKey();
+            System.out.printf("✅ [%s] %s\n", output_facility_severity, output_message);
+        };
+
+        channel.basicConsume(queue_name, true, callback, consumerTag -> {});
+
+    }
+}